systemctl stop mysqld.service //关闭MySQL服务
mv /var/lib/mysql/auto.cnf /var/lib/mysql/auto.cnf.bak //删除auto.cnf
systemctl start mysqld.service //重启mysql服务
3.重新登录,查看从库状态【注】执行vim /var/lib/mysql/auto.cnf 可以看到uuid已经改变

systemctl stop mysqld.service //关闭MySQL服务
mv /var/lib/mysql/auto.cnf /var/lib/mysql/auto.cnf.bak //删除auto.cnf
systemctl start mysqld.service //重启mysql服务
3.重新登录,查看从库状态【注】执行vim /var/lib/mysql/auto.cnf 可以看到uuid已经改变